Finding the Fourth Proportional to 20,045,399.99, 27,648,361.46 and 18,396,860.81
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Solution
The fourth proportional to 20,045,399.99, 27,648,361.46 and 18,396,860.81 is: 25,374,552.65
Step by Step Solution
- Step 1: Write the proportion equation
20,045,399.99 : 27,648,361.46 = 18,396,860.81 : x - Step 2: Convert to fraction form
20,045,399.99/27,648,361.46 = 18,396,860.81/x - Step 3: Cross multiply
20,045,399.99x = 27,648,361.46 × 18,396,860.81 - Step 4: Simplify right side
20,045,399.99x = 508,643,057,311,938.69 - Step 5: Solve for x
x = 508,643,057,311,938.69/20,045,399.99 - Step 6: Final answer
x = 25,374,552.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.